Department of Biology, Hong Kong Baptist University, Hong Kong, SAR, China.
Center for Research in Environmental Science, The Open University of Hong Kong, Hong Kong, China.
Environ Sci Pollut Res Int. 2017 Apr;24(10):9102-9110. doi: 10.1007/s11356-016-7856-x. Epub 2016 Dec 30.
This article explores the potential of using an electro-coagulation-flotation (ECF) harvester to allow flotation of microalgae cells for surface harvesting. A response surface methodology (RSM) model was used to optimize ECF harvesting by adjusting electrode plate material, electrode plate number, charge of the electrodes, electrolyte concentration, and pH value of the culture solution. The result revealed that three aluminum electrode plates (one anode and two cathodes), brine solution (8 g/L), and acidity (pH = 4) of culture solution (optimized ECF harvester) The highest flocculant concentration was measured at 2966 mg/L after 60 min and showed a 79.8 % increase of flocculation concentration. Such results can provide a basis for designing a large-scale microalgae harvester for commercial use in the future.
本文探讨了利用电凝聚浮选（ECF）收获器实现微藻细胞浮选表面收获的潜力。使用响应面法（RSM）模型通过调整电极板材料、电极板数量、电极电荷、电解质浓度和培养液 pH 值来优化 ECF 收获。结果表明，使用三个铝板（一个阳极和两个阴极）、盐水溶液（8 g/L）和酸性（pH=4）的培养液（优化的 ECF 收获器）在 60 分钟后可测量到最高絮凝剂浓度为 2966 mg/L，絮凝浓度增加了 79.8%。这些结果可以为未来设计用于商业用途的大型微藻收获器提供基础。
